Year	Number
1996	15.8469944000244
1998	18.5792350769043
2000	31.6939888000488
2002	29.7297306060791
2003	31.3513507843018
2004	36.3184089660645
2005	38.235294342041
2006	28.2926826477051
2007	25.2427177429199
2008	33.4951438903809
2009	39.2344512939453
2010	36.3636360168457
2011	38.3886260986328
2012	41.2322273254395
2013	41.7061614990234
2014	27.4038467407227
2015	19.5238094329834
2016	20.4761905670166
2017	11.9047622680664
2018	11.4285717010498
2019	12.380952835083
2020	11.9047622680664
2021	10.9523811340332
2022	6.60377359390259